Indication device

Abstract

To provide a display device with high water resistance. [Solution] The display device 10 comprises a display panel, a flexible substrate FL connected to the display panel and connecting the display panel to the outside, and a housing 300 that houses the display panel and has an opening 332 through which the flexible substrate FL passes. Furthermore, the display device 10 comprises a cover 400 disposed on the display surface side of the display panel and adhered to the housing 300, and a waterproof film 500. The waterproof film 500 is attached to the main surface 400a of the cover 400 on the display panel side, the side plate 330a of the housing 300 with the opening 332, and the bottom surface of the housing 300, and covers the gap 502 between the cover 400 and the side plate 330a of the housing 300 with the opening 332, including the opening 332, with the flexible substrate FL passing through the opening 332.

Description

Technical Field

[0001] The present disclosure relates to a display device.

Background Art

[0002] Display devices mounted on vehicles, laptop personal computers, etc. are required to have waterproof properties. For example, even if beverage water splashes on the display device mounted on a vehicle, it is required that the display device does not malfunction due to the beverage water.

[0003] Therefore, a display device having a waterproof sheet is known. For example, Patent Document 1 discloses a display device having a display panel, a frame member, and a waterproof sheet. The display panel is a liquid crystal display panel, an organic EL display panel, or the like. The frame member supports the outer peripheral portion of the display surface of the display panel. The waterproof sheet is attached to the side where the circuit board of the display panel is connected and extends along the surface of the frame member facing the display panel between the display panel and the frame member.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In Patent Document 1, when moisture enters the inside of the frame member through the gap between the display panel and the frame member, the moisture accumulates between the waterproof sheet and the frame member. Thereby, corrosion of the circuit board by moisture can be prevented.

[0006] However, since a frame member is essential to support the outer periphery of the display surface of the display panel, the invention described in Patent Document 1 cannot be applied to a display device that does not have a frame member. Furthermore, because moisture accumulates between the waterproof sheet and the frame member, the waterproofing of the display device in Patent Document 1 is insufficient.

[0007] This disclosure is made in view of the above circumstances and aims to provide a display device with high water resistance. [Means for solving the problem]

[0008] To achieve the above objectives, the display device relating to the first aspect of this disclosure is: Display panel and A flexible circuit board connected to the aforementioned display panel and connected to the external display panel, A housing that accommodates the display panel and has an opening in the side panel through which the flexible substrate passes, A cover is positioned on the display surface side of the display panel and is adhered to the housing, The device comprises a waterproof film that is attached to the main surface of the cover on the display panel side, the side plate of the housing having the opening, and the bottom surface of the housing, and covers the gap between the cover and the side plate of the housing having the opening, including the opening, with the flexible substrate passed through the opening.

[0009] The display device relating to the second aspect of this disclosure is Display panel and A first flexible circuit board connected to the display panel and connecting the display panel to the outside, A housing that accommodates the display panel and has an opening in the side panel through which the first flexible substrate passes, A touch panel is positioned on the display surface side of the display panel and is attached to the housing, A second flexible substrate is connected to the frame area of ​​the touch panel and connects the touch panel to the outside, A cover that covers the touch panel and is adhered to the touch panel, A first waterproof film is attached to the main surface of the cover on the display panel side, the side plate of the housing having the opening, and the bottom surface of the housing, and with the first flexible substrate passed through the opening, the first waterproof film covers the gap between the cover and the side plate of the housing having the opening, including the opening. The device comprises a second waterproof film that is attached to the main surface of the cover on the display panel side, the side plate of the housing, and the bottom surface of the housing, and covers the gap between the cover and the frame region to which the second flexible substrate of the touch panel is connected.

[0010] The display device relating to the third aspect of this disclosure is Display panel and A first flexible circuit board connected to the display panel and connecting the display panel to the outside, A housing that accommodates the display panel and has an opening in the side panel through which the first flexible substrate passes, A touch panel is positioned on the display surface side of the display panel and is attached to the housing, A second flexible substrate is connected to the frame area of ​​the touch panel and connects the touch panel to the outside, A cover that covers the touch panel and is adhered to the touch panel, A first waterproof film is attached to the main surface of the touch panel on the display panel side, the side plate of the housing having the opening, and the bottom surface of the housing, and with the first flexible substrate passed through the opening, the first waterproof film covers the gap between the touch panel and the side plate of the housing having the opening, including the opening. The device comprises a second waterproof film that is attached to the main surface of the cover on the display panel side, the side plate of the housing, and the bottom surface of the housing, and covers the gap between the cover and the frame area to which the second flexible substrate of the touch panel is connected. [Effects of the Invention]

[0011] According to this disclosure, the water resistance of the display device can be increased. [Brief explanation of the drawing]

[0012] [Figure 1] It is a plan view showing a display device according to Embodiment 1. [Figure 2] It is a cross-sectional view of the display device shown in FIG. 1 taken along line A-A as viewed in the arrow direction. [Figure 3] It is a plan view showing a liquid crystal display panel according to Embodiment 1. [Figure 4] It is a cross-sectional view of the liquid crystal display panel shown in FIG. 3 taken along line B-B as viewed in the arrow direction. [Figure 5] It is a cross-sectional view showing a flexible substrate and a housing according to Embodiment 1. [Figure 6] It is a plan view showing a housing according to Embodiment 1. [Figure 7] It is a perspective view showing a side plate and an opening of a housing according to Embodiment 1. [Figure 8] It is a perspective view showing a flexible substrate, a side plate, and a bottom surface of a housing according to Embodiment 1. [Figure 9] It is a side view showing a waterproof film and a side plate according to Embodiment 1. [Figure 10] It is a cross-sectional view of the waterproof film and the side plate shown in FIG. 9 taken along line C-C as viewed in the arrow direction. [Figure 11] It is a cross-sectional view of the waterproof film and the side plate shown in FIG. 9 taken along line D-D as viewed in the arrow direction. [Figure 12] It is a perspective view showing a cover, a waterproof film, a side plate, and a bottom surface of a housing according to Embodiment 1. [Figure 13] It is a flowchart showing a manufacturing method of a display device according to Embodiment 1. [Figure 14] It is a plan view showing a waterproof film according to Embodiment 2. [Figure 15] It is a schematic view showing a waterproof film, a side plate, and an adhesive member according to Embodiment 2. [Figure 16] It is a side view showing a waterproof film and a side plate according to Embodiment 2. [Figure 17] It is a plan view showing a display device according to Embodiment 3. [Figure 18] It is a cross-sectional view of the display device shown in FIG. 17 taken along line E-E as viewed in the arrow direction. [Figure 19] This is a plan view showing a touch panel according to Embodiment 3. [Figure 20] Figure 17 is a cross-sectional view of the display device shown, taken along the FF line. [Figure 21] This is a side view showing the first waterproof film and the side plate according to Embodiment 3. [Figure 22] This is a side view showing the second waterproof film and the side plate according to Embodiment 3. [Figure 23] This is a cross-sectional view showing a display device according to Embodiment 4. [Figure 24] This is a side view showing the first waterproof film and the side plate according to Embodiment 4. [Figure 25] This is a cross-sectional view showing the waterproof film and side plate according to Embodiment 5. [Figure 26] This is a cross-sectional view showing the waterproof film and side plate according to Embodiment 5. [Figure 27] This is a cross-sectional view showing a modified display device. [Modes for carrying out the invention]

[0013] The display device according to this embodiment will be described below with reference to the drawings.

[0014] <Embodiment 1> The display device 10 according to this embodiment will be described with reference to Figures 1 to 13. The display device 10 is mounted, for example, on a vehicle.

[0015] As shown in Figure 1, the display device 10 comprises a display unit 50, a cover 400, and a waterproof film 500. The display unit 50 displays characters, images, etc. The cover 400 protects the display unit 50. The waterproof film 500 covers the gap 502 between the cover 400 and the side plate 330a of the housing 300 of the display unit 50, which will be described later. In this specification, the longitudinal direction (to the right of the paper) of the display device 10 in Figure 1 is described as the +X direction, the short direction (towards the top of the paper) is described as the +Y direction, and the direction perpendicular to the +X and +Y directions (towards the front of the paper, towards the user) is described as the +Z direction.

[0016] As shown in Figure 2, the display unit 50 comprises a liquid crystal display panel 100, a flexible substrate FL, a backlight 200, and a housing 300. The liquid crystal display panel 100 displays characters, images, etc. The flexible substrate FL connects the liquid crystal display panel 100 to the outside. The backlight 200 is the light source for the liquid crystal display panel 100. The housing 300 houses the liquid crystal display panel 100 and the backlight 200. In Figure 2, for ease of understanding, the flexible substrate FL is shown with a solid line, and the hatching of the waterproof film 500 is omitted. In the following figures, the flexible substrate FL, waterproof film 500, etc., are shown with solid or dashed lines, and hatching may be omitted.

[0017] The liquid crystal display panel 100 of the display unit 50 is, for example, a known transmissive transverse field type liquid crystal display panel. The liquid crystal display panel 100 is actively matrix driven by a TFT (Thin Film Transistor). The liquid crystal display panel 100 modulates light from the backlight 200 to display characters, images, etc.

[0018] The liquid crystal display panel 100 has a display area 111 and a bezel area 112. The display area 111 is an area where pixels are arranged in a matrix and can display characters, images, etc. The bezel area 112 is an area where wiring, driver ICs (Integrated Circuits) 122, etc. are arranged. The bezel area 112 surrounds the display area 111.

[0019] As shown in Figures 3 and 4, the liquid crystal display panel 100 comprises a TFT substrate 114, a counter substrate 115, liquid crystal 116, a first polarizing plate 117, a second polarizing plate 118, and a driver IC 122. The TFT substrate 114 and the counter substrate 115 sandwich the liquid crystal 116. The first polarizing plate 117 is provided on the TFT substrate 114, and the second polarizing plate 118 is provided on the counter substrate 115. The driver IC 122 is mounted in the bezel region 112.

[0020] The TFT substrate 114 is, for example, a glass substrate. The TFT substrate 114 is located on the -Z side. The main surface 114a of the TFT substrate 114 on the liquid crystal 116 side is provided with a TFT for pixel selection, gate wiring, data wiring, common electrodes, pixel electrodes, an alignment film for aligning the liquid crystal 116, etc. (none of which are shown). The main surface 114b of the TFT substrate 114, opposite to the main surface 114a, is provided with a first polarizing plate 117.

[0021] The opposing substrate 115 is located on the +Z side and faces the TFT substrate 114. The opposing substrate 115 is bonded to the TFT substrate 114 by a sealing material 119. The opposing substrate 115 is, for example, a glass substrate. The main surface 115a of the opposing substrate 115 on the liquid crystal 116 side is provided with a color filter, a black matrix, an alignment film for aligning the liquid crystal 116, etc. (none of which are shown). The main surface 115b of the opposing substrate 115, opposite to the main surface 115a, is provided with a second polarizing plate 118.

[0022] The liquid crystal 116 is sandwiched between the TFT substrate 114 and the opposing substrate 115. The liquid crystal 116 is, for example, a positive-type nematic liquid crystal. The liquid crystal 116 is initially oriented in a direction parallel to the main surface 114a of the TFT substrate 114 by an alignment film. Furthermore, when a voltage is applied, the liquid crystal 116 rotates within a plane parallel to the main surface 114a of the TFT substrate 114.

[0023] The first polarizing plate 117 is provided on the main surface 114b of the TFT substrate 114, and the second polarizing plate 118 is provided on the main surface 115b of the opposing substrate 115. One of the transmission axes, the first polarizing plate 117 and the second polarizing plate 118, is arranged parallel to the initial orientation direction of the liquid crystal 116, and the transmission axes of the first polarizing plate 117 and the second polarizing plate 118 are orthogonal. In this embodiment, the +Z side main surface 118a of the second polarizing plate 118 corresponds to the display surface 100a of the liquid crystal display panel 100.

[0024] The driver IC 122 supplies signals to the gate wiring (gate electrode of the TFT) and data wiring (source electrode of the TFT) based on signals supplied from an external source. The driver IC 122 is mounted in the bezel region 112 located on the -Y side. The driver IC 122 is connected to the outside by a flexible circuit board FL. Here, "external" refers to drive circuits, control units, devices, etc., other than the liquid crystal display panel 100.

[0025] The flexible circuit board FL of the display unit 50 is connected to the liquid crystal display panel 100 (driver IC 122), and the liquid crystal display panel 100 is connected to the outside. The flexible circuit board FL is connected to the liquid crystal display panel 100 (driver IC 122) via wiring (not shown) at the end of the frame region 112 located on the -Y side.

[0026] As shown in Figure 5, the flexible substrate FL is pulled out from the end of the frame region 112 located on the -Y side of the liquid crystal display panel 100, through the opening 332 of the housing 300, and out to the outside of the housing 300. Furthermore, as will be described later, the flexible substrate FL pulled out from the opening 332 extends through the groove 334 of the side plate 330a of the housing 300 to the bottom surface 322 of the housing 300. In this embodiment, the flexible substrate FL is fixed to the bottom surface 322 of the housing 300 by an adhesive member (not shown).

[0027] As shown in Figure 2, the backlight 200 of the display unit 50 is positioned on the back side (-Z side) of the liquid crystal display panel 100. The backlight 200 emits white light to the liquid crystal display panel 100. The backlight 200 includes a white LED (Light Emitting Diode) element, a reflective sheet, a diffusion sheet, a light guide plate, a lighting circuit, etc. (none of which are shown). The light guide plate is formed from, for example, a light-transmitting acrylic resin (PMMA: Poly Methyl Methacrylate).

[0028] The housing 300 of the display unit 50 houses the liquid crystal display panel 100 and the backlight 200. The housing 300 has a box shape, as shown in Figures 5 and 6. The housing 300 is made of resin or metal. The housing 300 has a protrusion 310 extending into the housing 300 from the side plate 330, and the liquid crystal display panel 100 is positioned on the protrusion 310. The backlight 200 is positioned on the bottom plate 320 of the housing 300.

[0029] The housing 300 has an opening 332 for pulling out the flexible substrate FL, which is connected to the liquid crystal display panel 100, to the outside of the housing 300. As shown in Figures 6 and 7, the opening 332 is formed by cutting out the upper part of the side plate 330 (hereinafter referred to as side plate 330a) located on the side from which the flexible substrate FL is pulled out. Side plate 330a corresponds to the side plate 330 of the housing 300 that has the opening 332. Side plate 330a can also be referred to as the side plate 330 on the side of the housing 300 where the flexible substrate FL is located.

[0030] Furthermore, a groove 334 is formed in the side plate 330a. The flexible substrate FL, which is pulled out from the opening 332 to the outside of the housing 300, extends to the bottom surface 322 of the housing 300 through the groove 334 of the side plate 330a, as shown in Figure 8. The width (length in the X direction) D1 of the opening 332 and the width D2 of the groove 334 are wider than the width D3 of the flexible substrate FL.

[0031] Returning to Figure 2, the cover 400 of the display device 10 is positioned on the display surface 100a side (+Z side) of the liquid crystal display panel 100 and protects the display unit 50. The cover 400 is formed in a flat shape from a translucent resin, glass, or the like. The outer dimensions (X direction, Y direction) of the cover 400 are larger than the outer dimensions (X direction, Y direction) of the display unit 50, as shown in Figures 1 and 2. Therefore, in a cross-sectional view, the cover 400 protrudes outward beyond the outer dimensions of the display unit 50.

[0032] The cover 400 (the main surface 400a of the cover 400 on the side facing the liquid crystal display panel 100) is bonded to the upper surface 336 of the side plate 330 of the housing 300 by an adhesive member 410, as shown in Figure 2. The adhesive member 410 is provided over the entire upper surface 336 of the side plate 330, excluding the portion forming the opening 332 (Figure 6). The adhesive member 410 is an adhesive, double-sided tape, etc. The cover 400 and the liquid crystal display panel 100 are bonded together by a light-transmitting adhesive 420 (for example, OCA: Optical Clear Adhesive).

[0033] The waterproof film 500 of the display device 10 is made from a resin such as polyester resin, acrylic resin, or olefin resin in the shape of a rectangular sheet and is flexible and pliable. As shown in Figure 9, the width (length in the X direction) D4 of the waterproof film 500 is wider than the width D1 of the opening 332, the width D2 of the groove 334, and the width D3 of the flexible substrate FL.

[0034] The waterproof film 500 covers the gap 502 between the cover 400 and the side panel 330a of the housing 300, including the opening 332, with the flexible substrate FL passing through the opening 332 in the side panel 330a of the housing 300. Note that the gap 502 includes the opening 332, and "the gap 502 between the cover 400 and the side panel 330a of the housing 300, including the opening 332" is also referred to as the gap 502 between the cover 400 and the side panel 330a of the housing 300, or simply the gap 502.

[0035] Specifically, as shown in Figures 9 to 12, the +Z side end of the waterproof film 500 is attached to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side, and the waterproof film 500 is attached to the side plate 330a of the housing 300 and the bottom surface 322 of the housing 300, covering the gap 502. Also, as shown in Figures 9 and 12, the waterproof film 500 covers the flexible substrate FL pulled out from the opening 332, from the side plate 330a of the housing 300 to the bottom surface 322 of the housing 300, and also covers the side plate 330a. The waterproof film 500 is attached to the main surface 400a of the cover 400, the side plate 330a of the housing 300, and the bottom surface 322 of the housing 300 by adhesive, an adhesive layer provided on the waterproof film 500, etc. The waterproof film 500 is attached across the flexible circuit board FL to the side panel 330a of the housing 300 and to the bottom surface 322 of the housing 300.

[0036] In this embodiment, the waterproof film 500 is attached to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side, the side plate 330a of the housing 300, and the bottom surface 322 of the housing 300, covering the gap 502 between the cover 400 and the side plate 330a of the housing 300, including the opening 332. This prevents moisture from entering the display device 10 through the gap 502. Since moisture can be prevented from entering the display device 10, the display device 10 can achieve high waterproofness.

[0037] Next, the manufacturing method of the display device 10 will be described. Figure 13 is a flowchart of the manufacturing method of the display device 10. The manufacturing method of the display device 10 includes the steps of: attaching the waterproof film 500 to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side (step S110); bonding the cover 400 and the liquid crystal display panel 100 to which the flexible substrate FL is connected (step S120); housing the liquid crystal display panel 100 to which the flexible substrate FL is connected in the housing 300 and bonding the cover 400 to the housing 300 (step S130); and attaching the waterproof film 500 to the side plate 330a and the bottom surface 322 of the housing 300 (step S140).

[0038] In step S110, the end of the waterproof film 500 is attached to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side by the adhesive layer provided on the waterproof film 500.

[0039] In step S120, the cover 400, to which the waterproof film 500 is attached, and the liquid crystal display panel 100, to which the flexible circuit board FL is connected, are bonded together with adhesive 420.

[0040] In step S130, first, an adhesive member 410 is provided on the upper surface 336 of the side plate 330 of the housing 300 that houses the backlight 200, excluding the portion forming the opening 332. Next, the liquid crystal display panel 100 to which the flexible substrate FL is connected is housed in the housing 300, and the cover 400 (main surface 400a) is bonded to the housing 300 (upper surface 336 of the side plate 330). At the same time as bonding the cover 400 to the housing 300, the flexible substrate FL is pulled out to the outside of the housing 300 through the opening 332 and routed to the bottom surface 322 of the housing 300 via the groove 334. Furthermore, the flexible substrate FL is fixed to the bottom surface 322.

[0041] In step S140, the waterproof film 500 is attached to the side plate 330a and the bottom surface 322 of the housing 300 by the adhesive layer provided on the waterproof film 500. The display device 10 can then be manufactured.

[0042] In the manufacturing method of the display device 10 of this embodiment, the waterproof film 500 is attached to the cover 400 in advance, making it easy to manufacture the display device 10. For example, if the bezel area 112 of the liquid crystal display panel 100 is narrow, it is difficult to attach the waterproof film 500 to the cover 400 after bonding the cover 400 and the liquid crystal display panel 100 connected to the flexible substrate FL. In this embodiment, since the waterproof film 500 is attached to the cover 400 in advance, the display device 10 can be easily manufactured even if the bezel area 112 or gap 502 of the liquid crystal display panel 100 is narrow.

[0043] As described above, the waterproof film 500 is attached to the main surface 400a of the cover 400 on the side of the liquid crystal display panel 100, the side plate 330a of the housing 300, and the bottom surface 322 of the housing 300, covering the gap 502 between the cover 400 and the side plate 330a of the housing 300, including the opening 332, so that the display device 10 has high waterproofness.

[0044] <Embodiment 2> In Embodiment 1, the waterproof film 500 has a rectangular shape. The waterproof film 500 may also have a notch 510.

[0045] The configuration of the display device 10 in this embodiment is the same as that of the display device 10 in Embodiment 1, except for the shape of the waterproof film 500. Here, we will mainly explain the shape of the waterproof film 500 in this embodiment and the relationship between the waterproof film 500 and the adhesive member 410.

[0046] As shown in Figure 14, the waterproof film 500 of this embodiment has notches 510 on each side. The distance D5 between one notch 510 and the other notch 510 is the same as the width D1 of the opening 332 of the housing 300. The notches 510 are provided to avoid the adhesive member 410 that bonds the cover 400 and the housing 300 when the waterproof film 500 is attached to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side, the side plate 330a of the housing 300, and the bottom surface 322 of the housing 300, as shown in Figure 15. Note that in Figure 15, the waterproof film 500 is shown with a solid line for ease of understanding.

[0047] In this embodiment, the notch 510 allows the waterproof film 500 to be attached to the main surface 400a of the cover 400, the side plate 330a of the housing 300, and the bottom surface 322 of the housing 300, while avoiding the adhesive member 410 provided on the upper surface 336 of the side plate 330a of the housing 300, which adheres the cover 400 to the housing 300. Therefore, as shown in Figure 16, the waterproof film 500 and the adhesive member 410 do not overlap, and the thickness of the display device 10 can be reduced.

[0048] As described above, since the waterproof film 500 has a notch 510, the thickness of the display device 10 can be reduced. Also, similar to the display device 10 of Embodiment 1, the waterproof film 500 is attached to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side, the side plate 330a of the housing 300, and the bottom surface 322 of the housing 300, covering the gap 502, so the display device 10 of this embodiment also has high waterproofness.

[0049] <Embodiment 3> In Embodiment 1, the display unit 50 comprises a liquid crystal display panel 100, a flexible substrate FL, a backlight 200, and a housing 300. The display unit 50 may also include a touch panel 600.

[0050] As shown in Figure 17, the display device 10 of this embodiment comprises a display unit 50, a cover 400, a first waterproof film 520, and a second waterproof film 530. As shown in Figure 18, the display unit 50 of this embodiment comprises a liquid crystal display panel 100, a first flexible substrate FL1, a backlight 200, a housing 300, and a touch panel 600. The display unit 50 of this embodiment also comprises a second flexible substrate FL2, which will be described later.

[0051] The display unit 50 of this embodiment displays characters, images, etc., similar to the display unit 50 of Embodiment 1. Furthermore, the display unit 50 of this embodiment receives user instructions via the touch panel 600.

[0052] The configuration of the liquid crystal display panel 100, backlight 200, and housing 300 of the display unit 50 in this embodiment is the same as that of the liquid crystal display panel 100, backlight 200, and housing 300 in Embodiment 1. Furthermore, the configuration of the first flexible substrate FL1 of the display unit 50 in this embodiment is the same as that of the flexible substrate FL in Embodiment 1. Here, the touch panel 600 and the second flexible substrate FL2 will be described.

[0053] The touch panel 600 is a capacitive touch panel. As shown in Figure 19, the touch panel 600 has a translucent substrate 610, a plurality of first electrodes 620, an insulating layer 630, and a plurality of second electrodes 640.

[0054] The translucent substrate 610 is, for example, a glass substrate. The translucent substrate 610 has a first main surface 610a located on the +Z side. The translucent substrate 610 also has a detection area 611 and a frame area 612 surrounding the detection area 611. The detection area 611 corresponds to the display area 111 of the liquid crystal display panel 100.

[0055] Each first electrode 620 is provided on the first main surface 610a of the translucent substrate 610. The first electrodes 620 extend in the X direction. The first electrodes 620 are also arranged at equal intervals in the Y direction. The first electrodes 620 have a pattern (a so-called diamond pattern) in which the corners of multiple squares are connected in a row. Each of the first electrodes 620 is connected to the second flexible substrate FL2 via wiring (not shown).

[0056] The insulating layer 630 is provided on the first electrode 620 to insulate the first electrode 620 from the second electrode 640. The insulating layer 630 is, for example, a silicon oxide thin film.

[0057] Each second electrode 640 is provided on top of the insulating layer 630. The second electrodes 640 extend in the Y direction. Like the first electrodes 620, the second electrodes 640 have a pattern in which multiple square corners are connected in a row. Each of the second electrodes 640 is connected to the second flexible substrate FL2 via wiring (not shown).

[0058] The first electrode 620 and the second electrode 640 are formed from, for example, ITO (Indium Tin Oxide). When the touch panel 600 is viewed from above, the first electrode 620 and the second electrode 640 intersect at the connection point that connects the corners of the rectangle. The first electrode 620 and the second electrode 640 form capacitance with the object (for example, the user's finger, hand, pen, etc.).

[0059] When viewed from above, the external shape (X direction, Y direction) of the touch panel 600 (translucent substrate 610) is the same as the external shape of the housing 300. As shown in Figure 18, the touch panel 600 is positioned on the display surface 100a side (+Z side) of the liquid crystal display panel 100, and the second main surface 610b of the translucent substrate 610, opposite to the first main surface 610a, is bonded to the upper surface 336 of the side plate 330 of the housing 300 by an adhesive member 660. The adhesive member 660 is provided on the entire upper surface 336 of the side plate 330, except for the portion forming the opening 332, similar to the adhesive member 410 in Embodiment 1. In addition, a translucent adhesive 662 is filled between the touch panel 600 and the liquid crystal display panel 100. The second main surface 610b of the translucent substrate 610, opposite to the first main surface 610a, corresponds to the main surface of the touch panel 600 on the liquid crystal display panel 100 side.

[0060] The second flexible substrate FL2 connects to the first electrode 620 and the second electrode 640 of the touch panel 600, thereby connecting the touch panel 600 to the outside. As shown in Figure 19, the second flexible substrate FL2 is connected to the touch panel 600 (first electrode 620 and second electrode 640) via wiring (not shown) at the end of the frame region 612 located on the +X side.

[0061] As shown in Figure 20, the second flexible substrate FL2 extends from the edge of the frame region 612 located on the +X side of the touch panel 600, along the side plate 330 (hereinafter referred to as side plate 330b) on the +X side of the housing 300, and further extends to the bottom surface 322 of the housing 300. In this embodiment, the second flexible substrate FL2 is fixed to the bottom surface 322 of the housing 300 by an adhesive member (not shown). Side plate 330b corresponds to the side plate 330 on the side of the housing 300 where the second flexible substrate FL2 is located.

[0062] Returning to Figure 18, the cover 400 in this embodiment is positioned on the display surface 100a side (+Z side) of the liquid crystal display panel 100 and covers the touch panel 600. The cover 400 in this embodiment is bonded to the touch panel 600 with a light-transmitting adhesive 430. Specifically, the main surface 400a of the cover 400 on the liquid crystal display panel side and the touch panel 600 are bonded together. In this embodiment, the second flexible substrate FL2 of the touch panel 600 and the peripheral portion of the second flexible substrate FL2 in the frame region 612 are not bonded to the main surface 400a of the cover 400. Also, the portion of the main surface 400a of the cover 400 to which the first waterproof film 520 is attached is not bonded to the touch panel 600.

[0063] In this embodiment, the second flexible substrate FL2 of the touch panel 600 and the area around the second flexible substrate FL2 of the frame region 612 are not bonded to the cover 400. As shown in Figure 20, a gap 532 is created between the cover 400 and the frame region 612 to which the second flexible substrate FL2 of the touch panel 600 is connected. The other configurations of the cover 400 in this embodiment are the same as those of the cover 400 in Embodiment 1.

[0064] The first waterproof film 520 of the display device 10 in this embodiment, like the waterproof film 500 of Embodiment 1, is attached to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side, the side plate 330a of the housing 300, and the bottom surface 322 of the housing 300, covering the gap 522 between the cover 400 and the side plate 330a of the housing 300, including the opening 332 (Figures 18 and 21). Therefore, the first waterproof film 520, like the waterproof film 500 of Embodiment 1, can prevent moisture from entering the display device 10 through the gap 522. The other configurations of the first waterproof film 520 are also the same as those of the waterproof film 500 of Embodiment 1.

[0065] In this embodiment, the second waterproof film 530 of the display device 10 covers the gap 532 between the cover 400 and the frame area 612 to which the second flexible substrate FL2 of the touch panel 600 is connected. Specifically, as shown in Figures 20 and 22, the +Z side end of the second waterproof film 530 is attached to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side, and the second waterproof film 530 is attached to the side plate 330b and the bottom surface 322 of the housing 300, covering the gap 532. The second waterproof film 530 also covers the second flexible substrate FL2 from the side plate 330b to the bottom surface 322 of the housing 300, and also covers the side plate 330b. The second waterproof film 530 is attached to the main surface 400a of the cover 400, the side plate 330b of the housing 300, and the bottom surface 322 of the housing 300 by adhesive, an adhesive layer provided on the second waterproof film 530, etc., similar to the waterproof film 500 of Embodiment 1. The second waterproof film 530 is attached to the side plate 330b of the housing 300 and the bottom surface 322 of the housing 300, spanning the second flexible substrate FL2.

[0066] As shown in Figure 22, the width (length in the Y direction) D5 of the second waterproof film 530 is wider than the width D6 of the gap 532. Also, the width D6 of the gap 532 is wider than the width D7 of the second flexible substrate FL2.

[0067] In this embodiment, the second waterproof film 530 is attached to the main surface 400a of the cover 400 on the liquid crystal display panel 100 side, the side plate 330b of the housing 300, and the bottom surface 322 of the housing 300, covering the gap 532 between the cover 400 and the frame region 612 to which the second flexible substrate FL2 of the touch panel 600 is connected. Therefore, it is possible to prevent moisture from entering the display device 10 through the gap 532.

[0068] As described above, the first waterproof film 520 suppresses the intrusion of moisture through the gap 522, and the second waterproof film 530 suppresses the intrusion of moisture through the gap 532, so the display device 10 of this embodiment can achieve high waterproofness.

[0069] <Embodiment 4> In Embodiment 3, the first waterproof film 520 is attached to the main surface 400a of the cover 400 on the side facing the liquid crystal display panel 100. The first waterproof film 520 may also be attached to the touch panel 600.

[0070] The configuration of the display device 10 in this embodiment is the same as that of the display device 10 in Embodiment 3, except for the application of the first waterproof film 520. Here, the application of the first waterproof film 520 in this embodiment will be described.

[0071] As shown in Figures 23 and 24, the first waterproof film 520 of this embodiment is attached to the main surface 610b of the touch panel 600 on the liquid crystal display panel 100 side (i.e., the second main surface 610b opposite to the first main surface 610a of the translucent substrate 610), the side plate 330a of the housing 300, and the bottom surface 322 of the housing 300, covering the gap 524 between the touch panel 600 and the side plate 330a of the housing 300, which includes the opening 332. Therefore, it is possible to suppress moisture from entering the display device 10 through the gap 524.

[0072] As described above, the first waterproof film 520 of this embodiment can suppress the intrusion of moisture through the gap 524. Furthermore, the second waterproof film 530, similar to Embodiment 3, can suppress the intrusion of moisture through the gap 532. Therefore, the display device 10 of this embodiment can also achieve high waterproofness.

[0073] <Embodiment 5> In embodiments 1 and 2, the waterproof film 500 is formed from resin. In embodiments 3 and 4, the first waterproof film 520 and the second waterproof film 530 are also formed from resin. The waterproof film 500, the first waterproof film 520, and the second waterproof film 530 may be films containing metal.

[0074] The display device 10 of this embodiment, like the display device 10 of Embodiment 1, comprises a display unit 50, a cover 400, and a waterproof film 500. The configuration of the display device 10 of this embodiment is the same as that of the display device 10 of Embodiment 1, except for the configuration of the housing 300 of the display unit 50 and the waterproof film 500.

[0075] The housing 300 in this embodiment is formed from metal. For example, the housing 300 in this embodiment is formed from an aluminum alloy by die casting. The other components of the housing 300 in this embodiment are the same as those of the housing 300 in Embodiment 1.

[0076] The waterproof film 500 of this embodiment is a film containing metal (for example, aluminum or copper). Examples of metal-containing films include films formed from resin containing metal particles, resin films with metal (for example, aluminum or copper) vapor-deposited onto them (metal vapor-deposited films), and metal foils (for example, aluminum foil, copper foil). The other components of the waterproof film 500 of this embodiment are the same as those of the waterproof film 500 of Embodiment 1.

[0077] In this embodiment, the waterproof film 500 contains metal and is attached to the main surface 400a of the cover 400 and the side plates 330a and bottom surface 322 of the housing 300, which is made of metal. Therefore, the waterproof film 500 also functions as a shielding layer that absorbs or reflects electromagnetic waves. As a result, the waterproof film 500 of this embodiment can prevent electromagnetic waves R1 radiated from the outside to the display device 10 and suppress electromagnetic interference to the display device 10 from the outside (Figure 25). Furthermore, as shown in Figure 25, the waterproof film 500 of this embodiment can also suppress the leakage of electromagnetic waves R2 radiated from the flexible substrate FL of the display device 10 to the outside. Moreover, as shown in Figure 26, the waterproof film 500 of this embodiment can diffuse the heat He emitted from the driver IC 122 to the housing 300 by thermal conduction, thereby suppressing the thermal effects on the components constituting the display device 10.

[0078] As described above, the waterproof film 500 of this embodiment can suppress electromagnetic interference. Furthermore, the waterproof film 500 of this embodiment can suppress the effects of heat generation from the driver IC 122. The display device 10 of this embodiment has high waterproofness, similar to the display device 10 of Embodiment 1.

[0079] <Variation> While embodiments have been described above, this disclosure can be modified in various ways without departing from its essence.

[0080] The display unit 50 includes a display panel for displaying characters, images, etc., and the flexible circuit board FL or the first flexible circuit board FL1 only needs to be connected to the display panel.

[0081] For example, the display unit 50 may include an OLED (Electro-Luminescence) display panel 700, as shown in Figure 27. In the example shown in Figure 27, the flexible substrate FL is connected to the OLED display panel 700 (driver IC 122), and the OLED display panel 700 is connected externally. The housing 300 also houses the OLED display panel 700.

[0082] In Embodiment 2, the distance D5 between one notch 510 and the other notch 510 and the width D1 of the opening 332 of the housing 300 may be approximately equal.

[0083] In this embodiment, the cover 400 protects the display unit 50. The cover 400 may also be a component that provides design to the user.

[0084] The first waterproof film 520 may have a notch 510, similar to the waterproof film 500 in Embodiment 2.

[0085] At least one of the first waterproof film 520 and the second waterproof film 530 in Embodiments 3 and 4 may also be a metal-containing film, similar to the waterproof film 500 in Embodiment 5. By having at least one of the first waterproof film 520 and the second waterproof film 530 be a metal-containing film, electromagnetic interference can be suppressed, and the effects of heat generation from the driver IC 122 can be suppressed. When at least one of the first waterproof film 520 and the second waterproof film 530 is a metal-containing film, it is preferable that the housing 300 be formed from metal.

[0086] While preferred embodiments have been described above, this disclosure is not limited to these specific embodiments, and includes the invention described in the claims and its equivalents. [Explanation of Symbols]

[0087] 10 Display device, 50 Display unit, 100 Liquid crystal display panel, 100a Display surface, 111 Display area, 112 Frame area, 114 TFT substrate, 114a, 114b Main surface, 115 Opposite substrate, 115a, 115b Main surface, 116 Liquid crystal, 117 First polarizing plate, 118 Second polarizing plate, 118a Main surface, 119 Sealing material, 122 Driver IC, 200 Backlight, 300 Housing, 310 Protrusion, 320 Bottom plate, 322 Bottom surface, 330, 330a, 330b Side plate, 332 Opening, 334 Groove, 336 Top surface, 400 Cover, 400a Main surface, 410 Adhesive material, 420, 430 Adhesive, 500 Waterproof film, 502 Gap, 510 Cutout section, 520 First waterproof film, 522, 524 Gap, 530 Second waterproof film, 532 Gap, 600 Touch panel, 610 Translucent substrate, 610a First main surface, 610b Second main surface, main surface, 611 Detection area, 612 Frame area, 620 First electrode, 630 Insulating layer, 640 Second electrode, 660 Adhesive member, 662 Adhesive, 700 Organic EL display panel, FL Flexible substrate, FL1 First flexible substrate, FL2 Second flexible substrate, D1~D7 Width, R1, R2 Electromagnetic wave, He Heat

Claims

1. Display panel and, A flexible circuit board connected to the aforementioned display panel and connected to the external display panel, A housing that accommodates the display panel and has an opening in the side panel through which the flexible substrate passes, A cover is positioned on the display surface side of the display panel and is adhered to the housing, The waterproof film is attached to the main surface of the cover on the display panel side, the side plate of the housing having the opening, and the bottom surface of the housing, and covers the gap between the cover and the side plate of the housing having the opening, including the opening, with the flexible substrate passed through the opening. Display device.

2. The waterproof film has a cutout to avoid the adhesive member that bonds the cover and the housing. The display device according to claim 1.

3. The aforementioned waterproof film is a film containing metal. The display device according to claim 1 or 2.

4. Display panel and, A first flexible circuit board connected to the display panel and connecting the display panel to the outside, A housing that accommodates the display panel and has an opening in the side panel through which the first flexible substrate passes, A touch panel is positioned on the display surface side of the display panel and is attached to the housing, A second flexible substrate is connected to the frame area of ​​the touch panel and connects the touch panel to the outside, A cover that covers the touch panel and is adhered to the touch panel, A first waterproof film is attached to the main surface of the cover on the display panel side, the side plate of the housing having the opening, and the bottom surface of the housing, and with the first flexible substrate passed through the opening, the first waterproof film covers the gap between the cover and the side plate of the housing having the opening, including the opening. The system includes a second waterproof film that is attached to the main surface of the cover on the display panel side, the side plate of the housing, and the bottom surface of the housing, and covers the gap between the cover and the frame region to which the second flexible substrate of the touch panel is connected. Display device.

5. Display panel and, A first flexible circuit board connected to the display panel and connecting the display panel to the outside, A housing that accommodates the display panel and has an opening in the side panel through which the first flexible substrate passes, A touch panel is positioned on the display surface side of the display panel and is attached to the housing, A second flexible substrate is connected to the frame area of ​​the touch panel and connects the touch panel to the outside, A cover that covers the touch panel and is adhered to the touch panel, A first waterproof film is attached to the main surface of the touch panel on the display panel side, the side plate of the housing having the opening, and the bottom surface of the housing, and with the first flexible substrate passed through the opening, the first waterproof film covers the gap between the touch panel and the side plate of the housing having the opening, including the opening. The system includes a second waterproof film that is attached to the main surface of the cover on the display panel side, the side plate of the housing, and the bottom surface of the housing, and covers the gap between the cover and the frame region to which the second flexible substrate of the touch panel is connected. Display device.

6. The first waterproof film has a cutout to avoid the adhesive member that adheres the touch panel and the housing. The display device according to claim 4 or 5.

7. At least one of the first waterproof film and the second waterproof film is a film containing metal. The display device according to claim 4 or 5.

Images